• Augmentation refers to technologies that add new capabilities to existing real systems; in the Metaverse context, this means technologies that layer new control systems and information onto our perception of the physical environment.

• Simulation refers to technologies that model reality (or parallel realities), offering wholly new environments; in the Metaverse context, this means technologies that provide simulated worlds as the locus for interaction.

• Intimate technologies are focused inwardly, on the identity and actions of the individual or object; in the Metaverse context, this means technologies where the user (or semi-intelligent object) has agency in the environment, either through the use of an avatar/digital profile or through direct appearance as an actor in the system.

• External technologies are focused outwardly, towards the world at large; in the Metaverse context, this means technologies that provide information about and control of the world around the user.